黄金堆浸淋溶水中氰化物和砷协同处理试验研究  

Experimental research on synergistic treatment of cyanide and arsenic in gold heap leaching water

作　　者：邱陆明 刘影 郭雪婷 王莹 戴光明 Qiu Luming;Liu Ying;Guo Xueting;Wang Ying;Dai Guangming(Changchun Gold Research Institute Co.,Ltd.;Guizhou Jinfeng Mining Limited)

机构地区：[1]长春黄金研究院有限公司环境保护研究所 [2]长春黄金研究院有限公司 [3]贵州锦丰矿业有限公司

出　　处：《黄金》2021年第8期87-90,共4页Gold

摘　　要：针对某黄金堆浸淋溶水中低浓度氰化物和砷的协同处理技术进行试验研究,考察了芬顿法和臭氧氧化法处理氰化物和砷的最佳条件,并对比了工艺药剂成本。结果表明:芬顿法最佳工艺参数为初始pH值4,30%H 2O 2用量2 mL/L,七水硫酸亚铁用量0.75 g/L,反应时间1 h;臭氧氧化法最佳工艺参数为O 3用量0.50 g/L,五水硫酸铜用量0.10 g/L,反应时间1 h;2种工艺均可使堆浸淋溶水中总氰化合物、砷分别降至<0.5 mg/L、<0.05 mg/L,且成本相近,企业可根据所处位置及环保要求等情况选择合适工艺。Experimental research is carried out on the synergistic treatment technology for low-concentration cyanide and arsenic in certain gold heap leaching water,investigates the optimal conditions for Fenton and ozone oxidation method to treat cyanide and arsenic,and compares the process costs.The results show that the optimal process parameters for Fenton method is initial pH 4,30%H 2O 2 dosage 2 mL/L,iron vitriol dosage 0.75 g/L,reaction time 1 h;the optimal process parameters for ozone oxidation is O 3 dosage 0.50 g/L,blue vitriol dosage 0.10 g/L,reaction time 1 h;the two processes can lower the total cyanide concentration to less than 0.5 mg/L and arsenic concentration to less than 0.05 mg/L,with similar costs.Enterprises can choose proper process according to their locations and environme ntal requirements.

关 键 词：堆浸淋溶水 氰化物 砷 臭氧氧化法 芬顿法 

分 类 号：TD926.5[矿业工程—选矿]